Arithmetic control unit for an electronic computer



FIG. 1 is a front elevational view of an arithmetic control unit for an electronic computer showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevational view thereof, the left side being a mirror image thereof; and

FIG. 6 is a front, top and right side perspective view thereof. 

The ornamental design for an arithmetic control unit for an electronic computer, as shown and described. 